const canvas = document.getElementById('game');
const ctx = canvas.getContext('2d');

canvas.width = 800;
canvas.height = 500;

const player = {
  x: 100,
  y: 350,
  width: 32,
  height: 48,
  vx: 0,
  vy: 0,
  speed: 5,
  jumpForce: -14,
  grounded: false,
  hp: 100,
  maxHp: 100,
  facing: 1,
  weapon: 0,
  weaponLevel: 1,
  score: 0,
  invincible: 0,
  wave: 1,
  aimUp: false
};

const weapons = [
  { name: 'Пистолет', damage: 25, fireRate: 300, color: '#ffff00', bulletSpeed: 10, bulletSize: 6, glow: '#ffff88' },
  { name: 'Автомат', damage: 18, fireRate: 120, color: '#ff8800', bulletSpeed: 12, bulletSize: 5, glow: '#ffcc00' },
  { name: 'Дробовик', damage: 15, fireRate: 700, color: '#ff0000', bulletSpeed: 9, bulletSize: 4, count: 6, glow: '#ff6666' },
  { name: 'Лазер', damage: 50, fireRate: 400, color: '#00ffff', bulletSpeed: 20, bulletSize: 4, glow: '#88ffff', laser: true },
  { name: 'Ракетница', damage: 90, fireRate: 900, color: '#aa00ff', bulletSpeed: 7, bulletSize: 10, glow: '#dd88ff', explosive: true },
  { name: 'Огнемёт', damage: 10, fireRate: 60, color: '#ff4400', bulletSpeed: 6, bulletSize: 12, glow: '#ff8800', flame: true },
  { name: 'Плазма', damage: 40, fireRate: 250, color: '#00ff00', bulletSpeed: 11, bulletSize: 14, glow: '#88ff88', plasma: true }
];

let bullets = [];
let enemies = [];
let powerups = [];
let particles = [];
let explosions = [];
let keys = {};
let paused = false;
let gameTime = 0;
let lastShot = 0;
let backgroundOffset = 0;
let shake = 0;
let bossActive = false;
let boss = null;
let waveNum = 1;
let enemiesRemaining = 0;
let spawnTimer = 0;
let gameWon = false;
let endingTimer = 0;

const enemyTypes = [
  { name: 'soldier', width: 32, height: 48, hp: 60, speed: 1.5, color: '#4a5a2a', score: 100, weaponDrop: 0.3 },
  { name: 'tank', width: 75, height: 40, hp: 180, speed: 0.7, color: '#3a5a3a', score: 350, weaponDrop: 0.5 },
  { name: 'helicopter', width: 70, height: 35, hp: 100, speed: 2.5, color: '#5a6a7a', score: 250, weaponDrop: 0.4, fly: true },
  { name: 'commando', width: 34, height: 50, hp: 120, speed: 2.2, color: '#5a3a5a', score: 300, weaponDrop: 0.5 },
  { name: 'mech', width: 75, height: 60, hp: 300, speed: 0.5, color: '#2a5a6a', score: 600, weaponDrop: 0.8 }
];

function startNextWave() {
  if (bossActive || gameWon) return;
  waveNum++;
  enemiesRemaining = 6 + waveNum * 2;
  spawnTimer = 0;
  document.getElementById('wave-num').textContent = waveNum;
  document.getElementById('wprogress').textContent = enemiesRemaining + '/' + (6 + waveNum * 2);
}

function spawnEnemy() {
  const typeIdx = Math.min(Math.floor(waveNum / 2), enemyTypes.length - 1);
  const availableTypes = enemyTypes.slice(0, Math.max(1, typeIdx + 1));
  const type = availableTypes[Math.floor(Math.random() * availableTypes.length)];
  const isFly = type.fly;
  
  enemies.push({
    x: canvas.width + 50,
    y: isFly ? 80 + Math.random() * 120 : 452 - type.height,
    ...type,
    maxHp: type.hp + waveNum * 20,
    hp: type.hp + waveNum * 20,
    shootTimer: 0,
    animFrame: 0,
    fly: isFly
  });
}

function spawnBoss() {
  bossActive = true;
  boss = {
    x: canvas.width - 180,
    y: 320,
    width: 160,
    height: 90,
    hp: 5000,
    maxHp: 5000,
    speed: 0.4,
    color: '#2a3a4a',
    score: 10000,
    animFrame: 0,
    moveTimer: 0,
    legOffset: [0,0,0,0,0,0,0,0]
  };
  enemies = [];
  enemiesRemaining = 0;
}

function showEnding() {
  gameWon = true;
  endingTimer = 0;
}

const powerupTypes = [
  { type: 'pistol', color: '#ffff00', label: 'P', weapon: 0 },
  { type: 'machinegun', color: '#ff8800', label: 'M', weapon: 1 },
  { type: 'shotgun', color: '#ff0000', label: 'S', weapon: 2 },
  { type: 'laser', color: '#00ffff', label: 'L', weapon: 3 },
  { type: 'rocket', color: '#aa00ff', label: 'R', weapon: 4 },
  { type: 'flame', color: '#ff4400', label: 'F', weapon: 5 },
  { type: 'plasma', color: '#00ff00', label: 'G', weapon: 6 },
  { type: 'upgrade', color: '#ff00ff', label: '↑', upgrade: true },
  { type: 'health', color: '#00ff00', label: '+', heal: 35 },
  { type: 'maxhealth', color: '#ff0066', label: '♥', maxHeal: true },
  { type: 'shield', color: '#0088ff', label: 'S', shield: true },
  { type: 'bomb', color: '#ff6600', label: 'B', bomb: true }
];

function spawnPowerup(x, y) {
  const t = powerupTypes[Math.floor(Math.random() * powerupTypes.length)];
  powerups.push({
    x, y, width: 30, height: 30,
    ...t,
    vy: -6,
    grounded: false,
    bobOffset: Math.random() * Math.PI * 2
  });
}

function createExplosion(x, y, color, count = 20) {
  for (let i = 0; i < count; i++) {
    const angle = (Math.PI * 2 / count) * i;
    const speed = 3 + Math.random() * 5;
    particles.push({
      x, y,
      vx: Math.cos(angle) * speed,
      vy: Math.sin(angle) * speed,
      life: 40 + Math.random() * 20,
      color: color,
      size: 4 + Math.random() * 5
    });
  }
}

function createBlood(x, y, count = 15) {
  for (let i = 0; i < count; i++) {
    particles.push({
      x, y,
      vx: (Math.random() - 0.5) * 10,
      vy: (Math.random() - 0.5) * 10 - 3,
      life: 50 + Math.random() * 20,
      color: '#cc0000',
      size: 3 + Math.random() * 4,
      gravity: 0.5
    });
  }
}

function createSparks(x, y, count = 12) {
  for (let i = 0; i < count; i++) {
    particles.push({
      x, y,
      vx: (Math.random() - 0.5) * 8,
      vy: (Math.random() - 0.5) * 8,
      life: 25 + Math.random() * 15,
      color: '#ffff00',
      size: 3 + Math.random() * 3,
      gravity: 0.3
    });
  }
}

document.addEventListener('keydown', e => {
  keys[e.code] = true;
  if (e.code === 'KeyX') {
    player.weapon = (player.weapon + 1) % weapons.length;
  }
  if (e.code === 'KeyP' || e.code === 'Escape') {
    paused = !paused;
    document.getElementById('pause-btn').textContent = paused ? '▶ Продолжить' : '⏸ Пауза';
  }
  if (e.code === 'Space' && player.grounded) {
    player.vy = player.jumpForce;
    player.grounded = false;
  }
});
document.addEventListener('keyup', e => keys[e.code] = false);

function update() {
  if (paused || gameWon) return;
  
  gameTime++;
  
  if (shake > 0) shake--;
  
  const wpn = weapons[player.weapon];
  const fireRateReduction = (player.weaponLevel - 1) * 25;
  const currentFireRate = Math.max(30, wpn.fireRate - fireRateReduction);
  const damageMult = 1 + (player.weaponLevel - 1) * 0.2;
  
  player.aimUp = keys['ArrowUp'] && !player.grounded;
  
  if (keys['ArrowLeft']) { player.vx = -player.speed; player.facing = -1; }
  else if (keys['ArrowRight']) { player.vx = player.speed; player.facing = 1; }
  else player.vx = 0;
  
  player.vy += 0.7;
  player.x += player.vx;
  player.y += player.vy;
  
  if (player.y > 452 - player.height) {
    player.y = 452 - player.height;
    player.vy = 0;
    player.grounded = true;
  }
  
  if (player.x < 0) player.x = 0;
  if (player.x > canvas.width - player.width) player.x = canvas.width - player.width;
  
  if (keys['KeyZ'] && Date.now() - lastShot > currentFireRate) {
    const count = wpn.count || 1;
    const shootUp = player.aimUp;
    
    for (let i = 0; i < count; i++) {
      const angle = (count > 1) ? (i - (count-1)/2) * 0.2 : 0;
      const spread = wpn.flame ? (Math.random() - 0.5) * 0.5 : 0;
      const baseAngle = shootUp ? -Math.PI/2 + angle : angle;
      
      bullets.push({
        x: player.x + player.width/2,
        y: player.y + 14,
        vx: Math.cos(baseAngle + spread) * wpn.bulletSpeed * (shootUp ? 1 : player.facing) + (wpn.flame ? (Math.random() - 0.5) * 2 : 0),
        vy: Math.sin(baseAngle + spread) * wpn.bulletSpeed + (wpn.flame ? (Math.random() - 0.5) * 2 : 0),
        damage: wpn.damage * damageMult,
        color: wpn.color,
        size: wpn.bulletSize,
        glow: wpn.glow,
        explosive: wpn.explosive,
        flame: wpn.flame,
        plasma: wpn.plasma,
        laser: wpn.laser,
        life: 100
      });
    }
    lastShot = Date.now();
  }
  
  bullets = bullets.filter(b => {
    b.x += b.vx;
    b.y += b.vy;
    if (b.laser) b.life = 15;
    if (b.flame) b.life--;
    return b.life > 0 && b.x > -50 && b.x < canvas.width + 50 && b.y > -50 && b.y < canvas.height + 50;
  });
  
  if (!bossActive && enemiesRemaining > 0) {
    spawnTimer++;
    if (spawnTimer > 45) {
      spawnEnemy();
      enemiesRemaining--;
      spawnTimer = 0;
      document.getElementById('wprogress').textContent = enemiesRemaining + '/' + (6 + waveNum * 2);
    }
  }
  
  if (!bossActive && enemiesRemaining === 0 && enemies.length === 0) {
    if (player.score >= 30000 && waveNum >= 2) {
      spawnBoss();
    } else {
      startNextWave();
    }
  }
  
  if (bossActive && boss) {
    boss.moveTimer++;
    boss.animFrame++;
    
    for (let i = 0; i < 8; i++) {
      boss.legOffset[i] = Math.sin(boss.moveTimer * 0.08 + i * 0.8) * 8;
    }
    
    boss.y += Math.sin(boss.moveTimer * 0.02) * 0.5;
    if (boss.x > 450) boss.x -= boss.speed;
    
    if (player.invincible <= 0 &&
        player.x < boss.x + boss.width && player.x + player.width > boss.x &&
        player.y < boss.y + boss.height && player.y + player.height > boss.y) {
      player.hp -= 35;
      player.invincible = 90;
      shake = 12;
      createBlood(player.x + player.width/2, player.y + player.height/2, 25);
    }
    
    if (boss.hp <= 0) {
      player.score += boss.score;
      createExplosion(boss.x + boss.width/2, boss.y + boss.height/2, '#ff4400', 150);
      createBlood(boss.x + boss.width/2, boss.y + boss.height/2, 80);
      for (let i = 0; i < 8; i++) {
        spawnPowerup(boss.x + Math.random() * boss.width, boss.y + Math.random() * boss.height);
      }
      boss = null;
      bossActive = false;
      showEnding();
    }
  }
  
  enemies = enemies.filter(e => {
    e.x -= e.speed;
    e.shootTimer++;
    e.animFrame++;
    
    if (e.fly) e.y += Math.sin(e.animFrame * 0.06) * 2.5;
    
    if (player.invincible <= 0 &&
        player.x < e.x + e.width && player.x + player.width > e.x &&
        player.y < e.y + e.height && player.y + player.height > e.y) {
      player.hp -= 25;
      player.invincible = 60;
      shake = 6;
      createBlood(player.x + player.width/2, player.y + player.height/2, 18);
    }
    
    return e.x > -100 && player.hp > 0;
  });
  
  bullets = bullets.filter(b => {
    let hit = false;
    
    if (bossActive && boss &&
        b.x > boss.x && b.x < boss.x + boss.width &&
        b.y > boss.y && b.y < boss.y + boss.height) {
      boss.hp -= b.damage;
      hit = true;
      createExplosion(b.x, b.y, b.color, b.laser ? 20 : 12);
      createSparks(b.x, b.y, 8);
    }
    
    enemies.forEach((e, ei) => {
      if (b.x > e.x && b.x < e.x + e.width && b.y > e.y && b.y < e.y + e.height) {
        e.hp -= b.damage;
        hit = true;
        createExplosion(b.x, b.y, b.color, 12);
        
        if (e.hp <= 0) {
          player.score += e.score;
          createBlood(e.x + e.width/2, e.y + e.height/2, e.name === 'tank' || e.name === 'mech' ? 25 : 15);
          if (Math.random() < e.weaponDrop) spawnPowerup(e.x, e.y);
          enemies.splice(ei, 1);
        }
        
        if (b.explosive) {
          explosions.push({ x: b.x, y: b.y, radius: 0, alpha: 1 });
          shake = 4;
        }
      }
    });
    
    return !hit;
  });
  
  explosions = explosions.filter(e => {
    e.radius += 5;
    e.alpha -= 0.04;
    return e.alpha > 0;
  });
  
  powerups = powerups.filter(p => {
    p.vy += 0.5;
    p.y += p.vy;
    if (p.y > 452 - p.height) { p.y = 452 - p.height; p.vy = 0; p.grounded = true; }
    p.bobOffset += 0.1;
    
    if (player.x < p.x + p.width && player.x + player.width > p.x &&
        player.y < p.y + p.height && player.y + player.height > p.y) {
      if (p.weapon !== undefined) {
        if (player.weapon === p.weapon) {
          player.weaponLevel = Math.min(5, player.weaponLevel + 1);
        } else {
          player.weapon = p.weapon;
          player.weaponLevel = 1;
        }
      }
      if (p.upgrade) {
        player.weaponLevel = Math.min(5, player.weaponLevel + 1);
        createExplosion(p.x + p.width/2, p.y + p.height/2, '#ff00ff', 35);
      }
      if (p.heal) player.hp = Math.min(player.maxHp, player.hp + p.heal);
      if (p.maxHeal) { player.maxHp += 50; player.hp = player.maxHp; }
      if (p.shield) player.invincible = 300;
      if (p.bomb) {
        enemies.forEach(e => { e.hp -= 200; createExplosion(e.x + e.width/2, e.y + e.height/2, '#ff6600', 15); });
        enemies = enemies.filter(e => e.hp > 0);
        if (bossActive && boss) { boss.hp -= 800; shake = 20; }
      }
      player.score += 50;
      createExplosion(p.x + p.width/2, p.y + p.height/2, p.color, 25);
      return false;
    }
    return true;
  });
  
  particles = particles.filter(p => {
    p.x += p.vx;
    p.y += p.vy;
    p.vy += p.gravity || 0.3;
    p.life--;
    p.vx *= 0.94;
    return p.life > 0;
  });
  
  if (player.invincible > 0) player.invincible--;
  
  backgroundOffset += player.vx * 0.3;
  
  document.getElementById('hp').textContent = player.hp;
  document.getElementById('maxhp').textContent = player.maxHp;
  document.getElementById('wpn').textContent = weapons[player.weapon].name + (player.weaponLevel > 1 ? ' +' + (player.weaponLevel - 1) : '');
  document.getElementById('scr').textContent = player.score;
  
  if (player.hp <= 0) {
    alert('GAME OVER! Счёт: ' + player.score + ', Волна: ' + waveNum);
    resetGame();
  }
}

function resetGame() {
  player.x = 100; player.y = 350; player.hp = 100; player.maxHp = 100;
  player.score = 0; player.weapon = 0; player.weaponLevel = 1;
  waveNum = 1; enemiesRemaining = 6; spawnTimer = 0;
  bullets = []; enemies = []; powerups = []; particles = []; explosions = [];
  boss = null; bossActive = false; gameWon = false;
  document.getElementById('wave-num').textContent = '1';
  document.getElementById('wprogress').textContent = '6/6';
}

function draw() {
  if (shake > 0) {
    ctx.save();
    ctx.translate((Math.random() - 0.5) * shake * 2, (Math.random() - 0.5) * shake * 2);
  }
  
  if (gameWon) {
    endingTimer++;
    const gradient = ctx.createLinearGradient(0, 0, 0, canvas.height);
    gradient.addColorStop(0, '#ff6600');
    gradient.addColorStop(0.5, '#ff9933');
    gradient.addColorStop(1, '#cc3366');
    ctx.fillStyle = gradient;
    ctx.fillRect(0, 0, canvas.width, canvas.height);
    
    const sunX = 400 + Math.sin(endingTimer * 0.01) * 50;
    const sunGradient = ctx.createRadialGradient(sunX, 150, 0, sunX, 150, 120);
    sunGradient.addColorStop(0, '#ffff00');
    sunGradient.addColorStop(0.5, '#ff6600');
    sunGradient.addColorStop(1, 'transparent');
    ctx.fillStyle = sunGradient;
    ctx.beginPath();
    ctx.arc(sunX, 150, 120, 0, Math.PI * 2);
    ctx.fill();
    
    for (let i = 0; i < 10; i++) {
      const palmX = 100 + i * 80;
      ctx.fillStyle = '#3a2a1a';
      ctx.fillRect(palmX, 300, 12, 200);
      ctx.fillStyle = '#2a5a2a';
      for (let j = 0; j < 8; j++) {
        const angle = j * 0.4 - 1.6;
        ctx.save();
        ctx.translate(palmX + 6, 300);
        ctx.rotate(angle + Math.sin(endingTimer * 0.02 + j) * 0.1);
        ctx.fillRect(0, -60, 8, 60);
        ctx.restore();
      }
    }
    
    ctx.fillStyle = '#2a3a2a';
    ctx.fillRect(0, 450, canvas.width, 50);
    
    const carX = 300 + Math.min(endingTimer * 0.5, 300);
    ctx.fillStyle = '#f0f0f0';
    ctx.fillRect(carX, 410, 180, 50);
    ctx.fillRect(carX + 20, 385, 120, 35);
    ctx.fillStyle = '#88ccff';
    ctx.fillRect(carX + 30, 390, 40, 25);
    ctx.fillRect(carX + 90, 390, 50, 25);
    ctx.fillStyle = '#1a1a1a';
    ctx.beginPath();
    ctx.arc(carX + 35, 460, 18, 0, Math.PI * 2);
    ctx.arc(carX + 145, 460, 18, 0, Math.PI * 2);
    ctx.fill();
    ctx.fillStyle = '#ffccaa';
    ctx.fillRect(carX + 60, 375, 15, 20);
    ctx.fillStyle = '#ff6699';
    ctx.fillRect(carX + 55, 380, 25, 15);
    
    ctx.fillStyle = '#fff';
    ctx.font = 'bold 36px monospace';
    ctx.textAlign = 'center';
    ctx.fillText('ПОБЕДА!', 400, 100);
    ctx.font = '20px monospace';
    ctx.fillText('Ты спас девушку и уезжаешь в закат', 400, 150);
    ctx.fillText('Счёт: ' + player.score, 400, 190);
    ctx.textAlign = 'left';
    
    ctx.fillStyle = '#fff';
    ctx.font = '16px monospace';
    ctx.fillText('Нажми R для рестарта', 20, 30);
    
    if (keys['KeyR']) resetGame();
    
    if (shake > 0) ctx.restore();
    return;
  }
  
  const gradient = ctx.createLinearGradient(0, 0, 0, canvas.height);
  gradient.addColorStop(0, '#87CEEB');
  gradient.addColorStop(0.5, '#98D8C8');
  gradient.addColorStop(1, '#6B8E6B');
  ctx.fillStyle = gradient;
  ctx.fillRect(0, 0, canvas.width, canvas.height);
  
  ctx.fillStyle = '#5a8a5a';
  for (let i = 0; i < 15; i++) {
    const treeX = ((i * 80 - backgroundOffset * 0.2) % 1000) - 100;
    ctx.fillRect(treeX, 250, 16, 200);
    ctx.fillStyle = '#3a6a3a';
    ctx.beginPath();
    ctx.moveTo(treeX - 30, 280);
    ctx.lineTo(treeX + 8, 180);
    ctx.lineTo(treeX + 46, 280);
    ctx.fill();
    ctx.fillStyle = '#5a8a5a';
  }
  
  ctx.fillStyle = '#4a7a4a';
  for (let i = 0; i < 20; i++) {
    const bushX = ((i * 50 - backgroundOffset * 0.3) % 900) - 50;
    ctx.beginPath();
    ctx.arc(bushX, 420, 25, 0, Math.PI * 2);
    ctx.arc(bushX + 30, 425, 20, 0, Math.PI * 2);
    ctx.arc(bushX - 25, 425, 18, 0, Math.PI * 2);
    ctx.fill();
  }
  
  ctx.fillStyle = '#3a5a3a';
  for (let i = 0; i < 12; i++) {
    const palmX = ((i * 90 - backgroundOffset * 0.15) % 950) - 80;
    ctx.fillStyle = '#4a3a2a';
    ctx.fillRect(palmX + 10, 280, 14, 170);
    ctx.fillStyle = '#3a6a3a';
    for (let j = 0; j < 7; j++) {
      const angle = j * 0.35 - 1.2;
      ctx.save();
      ctx.translate(palmX + 17, 280);
      ctx.rotate(angle);
      ctx.fillRect(0, -50, 10, 50);
      ctx.restore();
    }
  }
  
  ctx.fillStyle = '#4a3a2a';
  ctx.fillRect(0, 452, canvas.width, 48);
  ctx.fillStyle = '#5a4a3a';
  ctx.fillRect(0, 452, canvas.width, 8);
  ctx.fillStyle = '#3a6a3a';
  for (let i = 0; i < canvas.width; i += 15) {
    const gh = 5 + Math.sin(gameTime * 0.06 + i * 0.1) * 3;
    ctx.fillRect(i, 452 - gh, 6, gh);
  }
  
  if (paused) {
    ctx.fillStyle = 'rgba(0, 0, 0, 0.7)';
    ctx.fillRect(0, 0, canvas.width, canvas.height);
    ctx.fillStyle = '#fff';
    ctx.font = 'bold 48px monospace';
    ctx.textAlign = 'center';
    ctx.fillText('ПАУЗА', canvas.width/2, canvas.height/2 - 30);
    ctx.font = '20px monospace';
    ctx.fillText('Нажми P или ESC для продолжения', canvas.width/2, canvas.height/2 + 20);
    ctx.textAlign = 'left';
  }
  
  if (player.invincible % 4 < 2) {
    const lo = player.vx !== 0 ? Math.sin(Date.now() * 0.02) * 7 : 0;
    
    ctx.fillStyle = '#1a2a3a';
    ctx.fillRect(player.x + 8, player.y + 36, 7, 14 + lo);
    ctx.fillRect(player.x + 17, player.y + 36, 7, 14 - lo);
    
    ctx.fillStyle = '#2a3a4a';
    ctx.fillRect(player.x + 6, player.y + 46, 10, 5);
    ctx.fillRect(player.x + 16, player.y + 46, 10, 5);
    
    for (let t = 0; t < 3; t++) {
      ctx.fillStyle = '#ffccaa';
      ctx.fillRect(player.x + 7 + t*3, player.y + 44, 3, 4);
      ctx.fillRect(player.x + 17 + t*3, player.y + 44, 3, 4);
    }
    
    ctx.fillStyle = '#3a5a4a';
    ctx.fillRect(player.x + 6, player.y + 16, 20, 24);
    
    ctx.fillStyle = '#2a3a3a';
    ctx.fillRect(player.x + 6, player.y + 30, 20, 5);
    
    ctx.fillStyle = '#5a7a6a';
    ctx.fillRect(player.x + 10, player.y + 18, 12, 14);
    
    ctx.fillStyle = '#ffccaa';
    ctx.fillRect(player.x + 8, player.y - 4, 16, 22);
    ctx.fillRect(player.x + 6, player.y - 2, 6, 10);
    ctx.fillRect(player.x + 20, player.y - 2, 6, 10);
    
    ctx.fillStyle = '#2a3a3a';
    ctx.fillRect(player.x + 6, player.y - 10, 20, 10);
    
    ctx.fillStyle = '#1a2a2a';
    ctx.fillRect(player.x + 10, player.y - 8, 12, 6);
    
    ctx.fillStyle = '#fff';
    const ex = player.facing === 1 ? player.x + 17 : player.x + 11;
    const ey = player.aimUp ? player.y - 2 : player.y + 1;
    ctx.fillRect(ex, ey, 5, 4);
    ctx.fillStyle = '#000';
    ctx.fillRect(player.facing === 1 ? ex + 2 : ex, ey + 1, 3, 2);
    
    ctx.fillStyle = '#ffccaa';
    const armY = player.aimUp ? player.y + 8 : player.y + 18;
    const armX = player.facing === 1 ? player.x + 18 : player.x + 2;
    ctx.fillRect(armX, armY, 8, 10);
    
    for (let f = 0; f < 4; f++) {
      ctx.fillStyle = '#ffccaa';
      const fingerY = player.aimUp ? armY + 8 : armY + 6;
      ctx.fillRect(armX + player.facing * (f * 2), fingerY + f, 3, 2);
    }
    
    const wx = player.facing === 1 ? player.x + 22 : player.x - 10;
    const wy = player.aimUp ? player.y - 10 : player.y + 18;
    const wa = player.aimUp ? -Math.PI/2 : 0;
    
    ctx.save();
    ctx.translate(player.x + player.width/2, player.y + 20);
    ctx.rotate(wa * player.facing);
    ctx.fillStyle = '#4a5a6a';
    ctx.fillRect(player.facing === 1 ? 8 : -20, player.aimUp ? -25 : -4, 28, 8);
    ctx.fillStyle = '#3a4a5a';
    ctx.fillRect(player.facing === 1 ? 24 : -14, player.aimUp ? -27 : -5, 14, 6);
    ctx.restore();
    
    if (player.invincible > 60) {
      ctx.strokeStyle = 'rgba(0, 136, 255, 0.6)';
      ctx.lineWidth = 4;
      ctx.beginPath();
      ctx.arc(player.x + player.width/2, player.y + player.height/2, 45, 0, Math.PI * 2);
      ctx.stroke();
    }
  }
  
  bullets.forEach(b => {
    if (b.laser) {
      ctx.strokeStyle = b.glow;
      ctx.lineWidth = b.size * 2;
      ctx.shadowBlur = 25;
      ctx.shadowColor = b.color;
      ctx.beginPath();
      ctx.moveTo(b.x - b.vx * 6, b.y - b.vy * 6);
      ctx.lineTo(b.x, b.y);
      ctx.stroke();
      ctx.shadowBlur = 0;
      ctx.fillStyle = '#fff';
      ctx.beginPath();
      ctx.arc(b.x, b.y, b.size + 2, 0, Math.PI * 2);
      ctx.fill();
    } else {
      const gg = ctx.createRadialGradient(b.x, b.y, 0, b.x, b.y, b.size * 4);
      gg.addColorStop(0, b.glow);
      gg.addColorStop(1, 'transparent');
      ctx.fillStyle = gg;
      ctx.beginPath();
      ctx.arc(b.x, b.y, b.size * 4, 0, Math.PI * 2);
      ctx.fill();
      ctx.fillStyle = b.color;
      ctx.beginPath();
      ctx.arc(b.x, b.y, b.size, 0, Math.PI * 2);
      ctx.fill();
    }
  });
  
  explosions.forEach(e => {
    ctx.fillStyle = `rgba(255, 80, 0, ${e.alpha})`;
    ctx.beginPath();
    ctx.arc(e.x, e.y, e.radius, 0, Math.PI * 2);
    ctx.fill();
    ctx.fillStyle = `rgba(255, 200, 50, ${e.alpha * 0.8})`;
    ctx.beginPath();
    ctx.arc(e.x, e.y, e.radius * 0.6, 0, Math.PI * 2);
    ctx.fill();
  });
  
  particles.forEach(p => {
    ctx.globalAlpha = p.life / 60;
    ctx.fillStyle = p.color;
    ctx.beginPath();
    ctx.arc(p.x, p.y, p.size, 0, Math.PI * 2);
    ctx.fill();
  });
  ctx.globalAlpha = 1;
  
  if (bossActive && boss) {
    boss.animFrame++;
    
    ctx.fillStyle = '#1a2a3a';
    for (let i = 0; i < 8; i++) {
      const legAngle = boss.legOffset[i];
      const legX = boss.x + (i < 4 ? 20 : boss.width - 20);
      const legY = boss.y + 40 + (i % 2) * 15;
      ctx.save();
      ctx.translate(legX, legY);
      ctx.rotate(legAngle * 0.05);
      ctx.fillRect(-8, -10, 8, 35);
      ctx.fillRect(-6, 25, 6, 20);
      ctx.restore();
    }
    
    ctx.fillStyle = boss.color;
    ctx.beginPath();
    ctx.ellipse(boss.x + boss.width/2, boss.y + 45, 70, 35, 0, 0, Math.PI * 2);
    ctx.fill();
    
    ctx.fillStyle = '#3a4a5a';
    ctx.beginPath();
    ctx.ellipse(boss.x + boss.width/2, boss.y + 35, 50, 25, 0, 0, Math.PI * 2);
    ctx.fill();
    
    ctx.fillStyle = '#ff3300';
    ctx.beginPath();
    ctx.arc(boss.x + 50, boss.y + 30, 18, 0, Math.PI * 2);
    ctx.arc(boss.x + boss.width - 50, boss.y + 30, 18, 0, Math.PI * 2);
    ctx.fill();
    
    ctx.fillStyle = '#ffff00';
    ctx.beginPath();
    ctx.arc(boss.x + 50, boss.y + 30, 8, 0, Math.PI * 2);
    ctx.arc(boss.x + boss.width - 50, boss.y + 30, 8, 0, Math.PI * 2);
    ctx.fill();
    
    ctx.fillStyle = '#000';
    ctx.beginPath();
    ctx.arc(boss.x + 50, boss.y + 30, 4, 0, Math.PI * 2);
    ctx.arc(boss.x + boss.width - 50, boss.y + 30, 4, 0, Math.PI * 2);
    ctx.fill();
    
    ctx.fillStyle = '#4a5a6a';
    ctx.fillRect(boss.x + boss.width/2 - 15, boss.y + 10, 30, 30);
    ctx.fillStyle = '#2a3a4a';
    ctx.beginPath();
    ctx.arc(boss.x + boss.width/2, boss.y + 20, 12, 0, Math.PI * 2);
    ctx.fill();
    
    ctx.fillStyle = '#6a7a8a';
    for (let i = 0; i < 3; i++) {
      ctx.fillRect(boss.x + 20 + i * 40, boss.y + 50, 12, 25);
    }
    
    const hpPct = boss.hp / boss.maxHp;
    ctx.fillStyle = '#333';
    ctx.fillRect(boss.x, boss.y - 35, boss.width, 16);
    ctx.fillStyle = hpPct > 0.5 ? '#0f0' : hpPct > 0.25 ? '#ff0' : '#f00';
    ctx.fillRect(boss.x + 3, boss.y - 32, (boss.width - 6) * hpPct, 10);
    ctx.fillStyle = '#fff';
    ctx.font = 'bold 16px monospace';
    ctx.textAlign = 'center';
    ctx.fillText('МЕХА-ПАУК', boss.x + boss.width/2, boss.y - 38);
    ctx.textAlign = 'left';
  }
  
  enemies.forEach(e => {
    e.animFrame++;
    
    if (e.name === 'soldier') {
      const lo = Math.sin(e.animFrame * 0.3) * 7;
      ctx.fillStyle = '#1a2a3a';
      ctx.fillRect(e.x + 8, e.y + 38, 7, 12 + lo);
      ctx.fillRect(e.x + 17, e.y + 38, 7, 12 - lo);
      ctx.fillStyle = '#2a3a4a';
      ctx.fillRect(e.x + 6, e.y + 46, 9, 5);
      ctx.fillRect(e.x + 17, e.y + 46, 9, 5);
      ctx.fillStyle = e.color;
      ctx.fillRect(e.x + 6, e.y + 16, 20, 24);
      ctx.fillStyle = '#3a4a3a';
      ctx.fillRect(e.x + 6, e.y + 28, 20, 5);
      ctx.fillStyle = '#5a6a5a';
      ctx.fillRect(e.x + 10, e.y + 18, 12, 12);
      ctx.fillStyle = '#ffccaa';
      ctx.fillRect(e.x + 8, e.y + 2, 16, 16);
      ctx.fillStyle = '#3a4a3a';
      ctx.fillRect(e.x + 6, e.y - 4, 20, 8);
      ctx.fillStyle = '#4a5a4a';
      ctx.fillRect(e.x + 18, e.y + 20, 14, 7);
      ctx.fillStyle = '#3a4a3a';
      ctx.fillRect(e.x + 30, e.y + 21, 14, 5);
    } else if (e.name === 'tank') {
      ctx.fillStyle = '#1a2a1a';
      const to = Math.sin(e.animFrame * 0.08) * 3;
      ctx.fillRect(e.x, e.y + 28 + to, e.width, 14);
      for (let w = 0; w < 6; w++) {
        ctx.fillRect(e.x + 8 + w * 11, e.y + 30 + to, 8, 10);
      }
      ctx.fillStyle = e.color;
      ctx.fillRect(e.x + 8, e.y + 12, e.width - 16, 20);
      ctx.fillRect(e.x + 20, e.y + 4, 35, 14);
      ctx.fillStyle = '#4a6a4a';
      ctx.fillRect(e.x + 35, e.y + 8, 30, 8);
      ctx.fillStyle = '#3a5a3a';
      ctx.fillRect(e.x + 55, e.y + 10, 35, 10);
      ctx.fillStyle = '#2a4a2a';
      ctx.beginPath();
      ctx.arc(e.x + 45, e.y + 12, 8, 0, Math.PI * 2);
      ctx.fill();
    } else if (e.name === 'helicopter') {
      ctx.fillStyle = '#2a3a3a';
      const ro = Math.sin(e.animFrame * 0.9) * 35;
      ctx.fillRect(e.x - 25, e.y - 12, 120, 6);
      ctx.fillRect(e.x + 20 + ro, e.y - 18, 10, 12);
      ctx.fillRect(e.x + 55 + ro, e.y - 18, 10, 12);
      ctx.fillStyle = e.color;
      ctx.beginPath();
      ctx.ellipse(e.x + 35, e.y + 10, 40, 18, 0, 0, Math.PI * 2);
      ctx.fill();
      ctx.fillStyle = '#88aacc';
      ctx.beginPath();
      ctx.arc(e.x + 50, e.y + 5, 15, 0, Math.PI * 2);
      ctx.fill();
      ctx.fillStyle = '#4a5a6a';
      ctx.fillRect(e.x - 15, e.y + 8, 30, 12);
      ctx.fillRect(e.x - 25, e.y + 4, 12, 20);
    } else if (e.name === 'commando') {
      const lo = Math.sin(e.animFrame * 0.45) * 9;
      ctx.fillStyle = '#2a1a2a';
      ctx.fillRect(e.x + 8, e.y + 40, 7, 12 + lo);
      ctx.fillRect(e.x + 19, e.y + 40, 7, 12 - lo);
      ctx.fillStyle = '#1a2a3a';
      ctx.fillRect(e.x + 6, e.y + 48, 10, 5);
      ctx.fillRect(e.x + 17, e.y + 48, 10, 5);
      ctx.fillStyle = e.color;
      ctx.fillRect(e.x + 8, e.y + 18, 18, 24);
      ctx.fillStyle = '#4a3a4a';
      ctx.fillRect(e.x + 8, e.y + 30, 18, 5);
      ctx.fillStyle = '#6a5a6a';
      ctx.fillRect(e.x + 12, e.y + 20, 10, 12);
      ctx.fillStyle = '#ffccaa';
      ctx.fillRect(e.x + 10, e.y + 4, 14, 16);
      ctx.fillStyle = '#4a3a4a';
      ctx.fillRect(e.x + 8, e.y - 2, 18, 8);
      ctx.fillStyle = '#ffccaa';
      ctx.fillRect(e.x + 18, e.y + 22, 14, 7);
      ctx.fillStyle = '#3a3a3a';
      ctx.fillRect(e.x + 30, e.y + 23, 16, 6);
    } else if (e.name === 'mech') {
      const lo = Math.sin(e.animFrame * 0.12) * 5;
      ctx.fillStyle = '#1a2a3a';
      ctx.fillRect(e.x + 12, e.y + 45, 16, 18 + lo);
      ctx.fillRect(e.x + 47, e.y + 45, 16, 18 - lo);
      ctx.fillStyle = '#2a3a4a';
      ctx.fillRect(e.x + 8, e.y + 58, 20, 8);
      ctx.fillRect(e.x + 43, e.y + 58, 20, 8);
      ctx.fillStyle = e.color;
      ctx.fillRect(e.x + 10, e.y + 22, 55, 30);
      ctx.fillRect(e.x + 22, e.y + 10, 36, 18);
      ctx.fillStyle = '#3a5a6a';
      ctx.fillRect(e.x + 28, e.y + 25, 24, 20);
      ctx.fillStyle = '#4a6a7a';
      ctx.beginPath();
      ctx.arc(e.x + 40, e.y + 35, 12, 0, Math.PI * 2);
      ctx.fill();
      ctx.fillStyle = '#ff4400';
      ctx.beginPath();
      ctx.arc(e.x + 40, e.y + 35, 5, 0, Math.PI * 2);
      ctx.fill();
      ctx.fillStyle = '#5a6a7a';
      ctx.fillRect(e.x + 50, e.y + 28, 30, 12);
    }
    
    const hpPct = e.hp / e.maxHp;
    ctx.fillStyle = '#333';
    ctx.fillRect(e.x, e.y - 18, e.width, 10);
    ctx.fillStyle = hpPct > 0.5 ? '#0f0' : hpPct > 0.25 ? '#ff0' : '#f00';
    ctx.fillRect(e.x + 2, e.y - 16, (e.width - 4) * hpPct, 6);
  });
  
  powerups.forEach(p => {
    const by = p.grounded ? Math.sin(p.bobOffset) * 5 : 0;
    const gg = ctx.createRadialGradient(p.x + p.width/2, p.y + p.height/2 + by, 0, p.x + p.width/2, p.y + p.height/2 + by, 25);
    gg.addColorStop(0, p.color);
    gg.addColorStop(1, 'transparent');
    ctx.fillStyle = gg;
    ctx.beginPath();
    ctx.arc(p.x + p.width/2, p.y + p.height/2 + by, 25, 0, Math.PI * 2);
    ctx.fill();
    ctx.fillStyle = p.color;
    ctx.fillRect(p.x + 3, p.y + 5 + by, p.width - 6, p.height - 6);
    ctx.strokeStyle = '#fff';
    ctx.lineWidth = 3;
    ctx.strokeRect(p.x + 3, p.y + 5 + by, p.width - 6, p.height - 6);
    ctx.fillStyle = '#fff';
    ctx.font = 'bold 20px monospace';
    ctx.textAlign = 'center';
    ctx.fillText(p.label, p.x + p.width/2, p.y + 23 + by);
    ctx.textAlign = 'left';
  });
  
  if (shake > 0) ctx.restore();
}

function loop() {
  update();
  draw();
  requestAnimationFrame(loop);
}

resetGame();
loop();